| Message ID | 20220315211936.442708-3-nfraprado@collabora.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | dt-bindings: pinctrl: mt8192: Add missing wrapping node and properties | expand |
Il 15/03/22 22:19, Nícolas F. R. A. Prado ha scritto: > Add the mediatek,drive-strength-adv property to the pinctrl-mt8192 > dt-binding to allow further drive current adjustments for I2C nodes on > MT8192. It is the same as in mt8183-pinctrl. > > Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
On Tue, 15 Mar 2022 17:19:34 -0400, Nícolas F. R. A. Prado wrote: > Add the mediatek,drive-strength-adv property to the pinctrl-mt8192 > dt-binding to allow further drive current adjustments for I2C nodes on > MT8192. It is the same as in mt8183-pinctrl. > > Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> > --- > > .../bindings/pinctrl/pinctrl-mt8192.yaml | 26 +++++++++++++++++++ > 1 file changed, 26 insertions(+) > Reviewed-by: Rob Herring <robh@kernel.org>
On Tue, Mar 15, 2022 at 10:20 PM Nícolas F. R. A. Prado <nfraprado@collabora.com> wrote: > Add the mediatek,drive-strength-adv property to the pinctrl-mt8192 > dt-binding to allow further drive current adjustments for I2C nodes on > MT8192. It is the same as in mt8183-pinctrl. > > Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Patch applied! Yours, Linus Walleij
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8192.yaml b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8192.yaml index d63e23d9ed16..b52d8d0eb2d0 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8192.yaml +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8192.yaml @@ -78,6 +78,32 @@ patternProperties: dt-bindings/pinctrl/mt65xx.h. It can only support 2/4/6/8/10/12/14/16mA in mt8192. enum: [2, 4, 6, 8, 10, 12, 14, 16] + mediatek,drive-strength-adv: + description: | + Describe the specific driving setup property. + For I2C pins, the existing generic driving setup can only support + 2/4/6/8/10/12/14/16mA driving. But in specific driving setup, they + can support 0.125/0.25/0.5/1mA adjustment. If we enable specific + driving setup, the existing generic setup will be disabled. + The specific driving setup is controlled by E1E0EN. + When E1=0/E0=0, the strength is 0.125mA. + When E1=0/E0=1, the strength is 0.25mA. + When E1=1/E0=0, the strength is 0.5mA. + When E1=1/E0=1, the strength is 1mA. + EN is used to enable or disable the specific driving setup. + Valid arguments are described as below: + 0: (E1, E0, EN) = (0, 0, 0) + 1: (E1, E0, EN) = (0, 0, 1) + 2: (E1, E0, EN) = (0, 1, 0) + 3: (E1, E0, EN) = (0, 1, 1) + 4: (E1, E0, EN) = (1, 0, 0) + 5: (E1, E0, EN) = (1, 0, 1) + 6: (E1, E0, EN) = (1, 1, 0) + 7: (E1, E0, EN) = (1, 1, 1) + So the valid arguments are from 0 to 7. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3, 4, 5, 6, 7] + bias-pull-down: true bias-pull-up: true
Add the mediatek,drive-strength-adv property to the pinctrl-mt8192 dt-binding to allow further drive current adjustments for I2C nodes on MT8192. It is the same as in mt8183-pinctrl. Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> --- .../bindings/pinctrl/pinctrl-mt8192.yaml | 26 +++++++++++++++++++ 1 file changed, 26 insertions(+)